Steel Forging Shafts with Quenching and Tempering - ASTM Standards

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Molding Technics: Casting
• Application: Machinery Parts
• Material: Steel
• Heat Treatment: Normalizing
• Surface Treatment: Rough Machining
• Forging Tolerance: +/-0.5mm
• Standard: GB
• Certification: CE, RoHS, ISO 9001:2000, ISO 9001:2008
• International Standards: ASTM, AISI, DIN, JIS, BS
• Delivery Condition: Quenching+Tempering, Normalizing, Anealing
• Shape: Round Bar, Square, Shaft, Ring, Cylinder
• Delivery Surfaces: Black, Rough Machning Bright, Fine Maching Bright
• Alloy No: 9cr2mo, 18crmimo6, 30Cr2Ni2Mo
• Transport Package: Wooden Cartons
• Specification: Customization
• Trademark: weirun
• Origin: Jiangsu, China
• Production Capacity: 3000 Tons/Month

Product Description

Product Description

Chemical Composition (%):

	C	Si	Mn	P	S	Cr	Mo	Ni	Standard
9Cr2Mo	0.85-0.95	0.25-0.45	0.20-0.35	≤0.025	≤0.025	1.70-2.10	0.20-0.40	≤0.25	GB/T13314-2008
18CrNiMo7-6	0.15-0.21	≤0.4	0.50-0.90	≤0.025	≤0.035	1.50-1.80	0.25-0.35	1.4-1.7	EN 10084-2008
30Cr2Ni2Mo	0.26-0.34	0.17-0.37	0.50-0.80	≤0.020	≤0.020	1.80-2.20	0.30-0.50	1.80-2.20	GB/T3077-2015

Main Products

Company Profile

Jiangsu Weirun Forging Co., Ltd.
Established in the transformative year of 2001, Jiangsu Weirun Forging Co., Ltd. carries forward a rich legacy originating from Jiangsu Longtai Alloy Technology Co., Ltd. and Jiangsu Xinya New Materials Co., Ltd. As a trailblazer in China, the company has set a high bar in alloy steel smelting and the meticulous crafting of a diverse range of forged products.
With an unwavering commitment to excellence, our company is a master of sophisticated production and management processes in alloy steel smelting, electroslag remelting, forging, and mold crafting. We have diligently constructed a comprehensive industrial chain over the years, flawlessly combining material recycling, smelting, electroslag casting, forging, and precise mold machining, effectively serving both domestic and global markets with unparalleled distinction.
Our strategic prowess is exemplified by a vast 60,000 square meter facility, which houses an exceptional array of resources, including three modern 1-ton electroslag furnaces, alongside a remarkable 3-ton and a 10-ton version. Our mechanical capabilities are further elevated by two 2-ton air hammers, a 1-ton air hammer, and a precise 0.75-ton air hammer, supplemented by fully mechanized electro-hydraulic hammer production lines of 5 tons and 8 tons each. Our extensive setup features comprehensive mechanical processing and advanced heat treatment equipment, cutting-edge spectrometers, and sophisticated testing devices for physical and chemical performance. Our solid foundation of 153 million yuan in fixed assets underpins our ability to reach an astounding industrial output value of 300 million yuan. With a dedicated workforce of over 200, including over 20 highly skilled technical professionals, we proudly stand among Danyang City's top fifty enterprises, boasting commendable annual sales and tax revenue.
Our pursuit of excellence is powered by the strategic infusion of diverse technical talents and the fostering of dynamic collaborations with esteemed domestic universities and research institutions. Our relentless dedication to technological advancement and innovation has been honored with 5 national authorized invention patents and 3 utility model patents, cementing our leadership in the industry.
Boasting an impressive annual production capacity of over 30,000 tons of steel ingots and a formidable forging capacity of 15,000 tons, our products are widely utilized across various industries, including wind power, chemical engineering, machinery, automotive, shipbuilding, power generation, metallurgy, mining, and petrochemicals. Inspired by the ethos of "pursuing excellence and building a world brand," we advance seamlessly into international markets. Our unwavering commitment to an international brand strategy ensures production adherence to the highest global standards. Our dedication to excellence is validated by certifications such as ISO9001, China CCS, France BV, and Germany TUV. As a trusted professional supplier and service provider of forged products, Weirun epitomizes professionalism and innovation, consistently delivering exceptional services through a specialized, high-caliber approach to fulfill customer needs.

FAQ

• What is the difference between forging and casting?

  Forging: It is the process of transforming a solid from one shape to another. Casting: It is the process of transforming a shapeless liquid metal into a solid with a shape. The so-called casting is the process of casting molten metal into a model to obtain a casting. The casting profession focuses on the metal melting process and the control of processes during the casting process. Forging is a plastic forming process in the solid state, which can be divided into hot processing and cold processing. Forgings include extrusion, drawing, roughening, punching, and so on. Casting is a solid liquid solid process, while forging is a solid to solid process where a solid can change its shape into another shape at high temperatures. There are still differences in the shape process and process of the two.

• How to choose high-quality forgings?

  In the quality inspection of forgings, there are mainly external observation methods and internal inspection methods. The appearance method, as the name suggests, is to observe the appearance of the product, such as the shape, geometric dimensions, surface condition, etc. of the forging, in order to understand whether it meets the standards and whether there are external defects. Specifically, it is to check whether the external dimensions of the forging meet the specifications and whether there are defects on the surface, such as cracks, wrinkles, bubbles, indentations, pits, impurities, scratches, etc. on the surface of the forging. Internal testing mainly involves analyzing the chemical composition, macroscopic and microscopic structures, and mechanical properties of forgings. This inspection process requires the use of specialized instruments for high magnification inspection, with the aim of checking for any phenomena such as fractures and shrinkage within the forging, as well as defects such as dendrites and white spots, disordered flow lines, and throughflow. It also includes the tensile strength, ductility, hardness, plasticity, and heat resistance temperature of the forging.

• What are the characteristics of the forging process for blank forgings?

  The forging process of circular forgings mainly consists of the following processes: pier roughening, elongation, punching, and expanding. The difference between free forging and ring rolling processes is mainly in the process of expanding holes. In the production of ring forgings, free forging is usually used to expand the hole with a horse screw, while ring rolling is mainly used to expand the hole with rolling.